SOOOOOO frustrating, after trying 4 hours to install back glass I now find out that it is NOT the same !@#$%^&* gasket as the pickup back glass! totally different profile! For those of you doing the same project here is the REAL information! The back glass on a suburban is LARGER than the opening! The glass slot is offset from the seam on the door towards the outside of the body so the glass actually sits between the rubber and the seam, NOT inline with the seam.